Under the "Settings" tab, select 'Payments', click the the 'Edit' icon besides 'Stripe Payment'.
Click the 'Connect with Stripe' button.
You can connect to your existing Stripe account or register a new one.
After you finish the connection, you'll be able to set the 'Order Status', 'Geo zone', 'Status'and 'Display name'. You can also reconnect your store to a new Stripe account.
Your customers can pay you with their credit cards now!